From 930206080e55a0fa50d5c4231f6d279522b15fff Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Sat, 1 Feb 2025 17:42:37 +0900
Subject: [PATCH 01/32] =?UTF-8?q?feat:=20=EB=A7=88=EC=9D=B8=EB=93=9C?=
 =?UTF-8?q?=EB=A7=B5=20=EC=9E=91=EC=97=85=20=EB=A1=9C=EA=B7=B8=20=EC=8A=A4?=
 =?UTF-8?q?=ED=82=A4=EB=A7=88?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../schemas/board-operation.schema.ts         | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 nestjs-BE/server/src/board-trees/schemas/board-operation.schema.ts

diff --git a/nestjs-BE/server/src/board-trees/schemas/board-operation.schema.ts b/nestjs-BE/server/src/board-trees/schemas/board-operation.schema.ts
new file mode 100644
index 00000000..5261a03b
--- /dev/null
+++ b/nestjs-BE/server/src/board-trees/schemas/board-operation.schema.ts
@@ -0,0 +1,28 @@
+import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
+import { HydratedDocument } from 'mongoose';
+
+export type BoardOperationDocument = HydratedDocument<BoardOperation>;
+
+@Schema()
+export class BoardOperation {
+  @Prop({ required: true })
+  boardId: string;
+
+  @Prop({ required: true })
+  type: string;
+
+  @Prop()
+  parentId: string;
+
+  @Prop()
+  oldParentId: string;
+
+  @Prop()
+  content: string;
+
+  @Prop()
+  oldContent: string;
+}
+
+export const BoardOperationSchema =
+  SchemaFactory.createForClass(BoardOperation);

From 0c5f0b515c35d9631999a1e779f27244797b2503 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Sat, 1 Feb 2025 21:17:31 +0900
Subject: [PATCH 02/32] =?UTF-8?q?feat:=20=EB=AA=A8=EB=93=88=EC=97=90=20Boa?=
 =?UTF-8?q?rdOperation=20=EC=8A=A4=ED=82=A4=EB=A7=88=20=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/src/board-trees/board-trees.module.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/nestjs-BE/server/src/board-trees/board-trees.module.ts b/nestjs-BE/server/src/board-trees/board-trees.module.ts
index 211084d2..d7e47a91 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.module.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.module.ts
@@ -4,11 +4,16 @@ import { MongooseModule } from '@nestjs/mongoose';
 import { BoardTreesService } from './board-trees.service';
 import { BoardTreesGateway } from './board-trees.gateway';
 import { BoardTree, BoardTreeSchema } from './schemas/board-tree.schema';
+import {
+  BoardOperation,
+  BoardOperationSchema,
+} from './schemas/board-operation.schema';
 
 @Module({
   imports: [
     MongooseModule.forFeature([
       { name: BoardTree.name, schema: BoardTreeSchema },
+      { name: BoardOperation.name, schema: BoardOperationSchema },
     ]),
     JwtModule,
   ],

From 68522c491e2501c53d1501e62cdcb21e74d182d7 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Sat, 1 Feb 2025 21:59:32 +0900
Subject: [PATCH 03/32] =?UTF-8?q?feat:=20=EB=B3=B4=EB=93=9C=20=EC=9E=91?=
 =?UTF-8?q?=EC=97=85=20=EC=83=9D=EC=84=B1=20=EC=9A=94=EC=B2=AD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/src/board-trees/board-trees.gateway.ts | 6 ++++++
 nestjs-BE/server/src/board-trees/board-trees.service.ts | 7 +++++++
 2 files changed, 13 insertions(+)

diff --git a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
index 6d8a896a..f76c76b3 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
@@ -14,6 +14,7 @@ import {
   OperationMove,
   OperationUpdate,
 } from '../crdt/operation';
+import type { BoardOperation } from './schemas/board-operation.schema';
 
 @WebSocketGateway({ namespace: 'board' })
 export class BoardTreesGateway implements OnGatewayConnection {
@@ -75,4 +76,9 @@ export class BoardTreesGateway implements OnGatewayConnection {
       .to(boardId)
       .emit('operationFromServer', serializedOperation);
   }
+
+  @SubscribeMessage('createOperation')
+  handleCreateOperation(client: Socket, operation: BoardOperation) {
+    client.broadcast.to(operation.boardId).emit('operation', operation);
+  }
 }
diff --git a/nestjs-BE/server/src/board-trees/board-trees.service.ts b/nestjs-BE/server/src/board-trees/board-trees.service.ts
index d8f39d1e..03ca1570 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.service.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.service.ts
@@ -2,6 +2,7 @@ import { Injectable } from '@nestjs/common';
 import { InjectModel } from '@nestjs/mongoose';
 import { Model } from 'mongoose';
 import { BoardTree } from './schemas/board-tree.schema';
+import { BoardOperation } from './schemas/board-operation.schema';
 import { CrdtTree } from '../crdt/crdt-tree';
 import { Operation } from '../crdt/operation';
 
@@ -9,6 +10,8 @@ import { Operation } from '../crdt/operation';
 export class BoardTreesService {
   constructor(
     @InjectModel(BoardTree.name) private boardTreeModel: Model<BoardTree>,
+    @InjectModel(BoardOperation.name)
+    private boardOperationModel: Model<BoardOperation>,
   ) {}
 
   private boardTrees = new Map<string, CrdtTree>();
@@ -57,4 +60,8 @@ export class BoardTreesService {
       .updateOne({ boardId }, { tree: JSON.stringify(tree) })
       .exec();
   }
+
+  async createOperationLog(operation: BoardOperation) {
+    return this.boardOperationModel.create({ operation });
+  }
 }

From 929927ff90cacf8f88be473273ccf4d66e3f2606 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Mon, 3 Feb 2025 20:47:05 +0900
Subject: [PATCH 04/32] =?UTF-8?q?fix:=20=EC=9E=91=EC=97=85=20DB=EC=97=90?=
 =?UTF-8?q?=20=EC=A0=80=EC=9E=A5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/src/board-trees/board-trees.gateway.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
index f76c76b3..d65f74fe 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
@@ -78,7 +78,8 @@ export class BoardTreesGateway implements OnGatewayConnection {
   }
 
   @SubscribeMessage('createOperation')
-  handleCreateOperation(client: Socket, operation: BoardOperation) {
+  async handleCreateOperation(client: Socket, operation: BoardOperation) {
+    await this.boardTreesService.createOperationLog(operation);
     client.broadcast.to(operation.boardId).emit('operation', operation);
   }
 }

From 7620434bb8b1f208cd4a11e70a58648aba7608b5 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Mon, 3 Feb 2025 21:09:55 +0900
Subject: [PATCH 05/32] =?UTF-8?q?feat;=20=EC=9E=91=EC=97=85=20=EB=A1=9C?=
 =?UTF-8?q?=EA=B7=B8=20=EA=B0=80=EC=A0=B8=EC=98=A4=EA=B8=B0=EA=B8=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/src/board-trees/board-trees.gateway.ts | 6 ++++++
 nestjs-BE/server/src/board-trees/board-trees.service.ts | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
index d65f74fe..21d9f0e8 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
@@ -82,4 +82,10 @@ export class BoardTreesGateway implements OnGatewayConnection {
     await this.boardTreesService.createOperationLog(operation);
     client.broadcast.to(operation.boardId).emit('operation', operation);
   }
+
+  @SubscribeMessage('getOperations')
+  async handleGetOperations(client: Socket, boardId: string) {
+    const operations = await this.boardTreesService.getOperationLogs(boardId);
+    client.emit('getOperations', operations);
+  }
 }
diff --git a/nestjs-BE/server/src/board-trees/board-trees.service.ts b/nestjs-BE/server/src/board-trees/board-trees.service.ts
index 03ca1570..e8179aa8 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.service.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.service.ts
@@ -64,4 +64,8 @@ export class BoardTreesService {
   async createOperationLog(operation: BoardOperation) {
     return this.boardOperationModel.create({ operation });
   }
+
+  async getOperationLogs(boardId: string) {
+    return this.boardOperationModel.find({ boardId });
+  }
 }

From 2244e2e1c2064fe6d6bc8f63c9f5c69ffd96ace7 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Mon, 3 Feb 2025 21:25:35 +0900
Subject: [PATCH 06/32] =?UTF-8?q?fix:=20gateway=EC=97=90=EC=84=9C=20?=
 =?UTF-8?q?=ED=8A=B8=EB=A6=AC=20=EC=A1=B0=EC=9E=91=20=EC=A0=9C=EA=B1=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../src/board-trees/board-trees.gateway.ts    | 39 +------------------
 1 file changed, 1 insertion(+), 38 deletions(-)

diff --git a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
index 21d9f0e8..330b2e53 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
@@ -8,12 +8,6 @@ import {
 } from '@nestjs/websockets';
 import { Server, Socket } from 'socket.io';
 import { BoardTreesService } from './board-trees.service';
-import {
-  OperationAdd,
-  OperationDelete,
-  OperationMove,
-  OperationUpdate,
-} from '../crdt/operation';
 import type { BoardOperation } from './schemas/board-operation.schema';
 
 @WebSocketGateway({ namespace: 'board' })
@@ -42,39 +36,8 @@ export class BoardTreesGateway implements OnGatewayConnection {
   @SubscribeMessage('joinBoard')
   async handleJoinBoard(client: Socket, payload: string) {
     const payloadObject = JSON.parse(payload);
-    if (!this.boardTreesService.hasTree(payloadObject.boardId)) {
-      await this.boardTreesService.initBoardTree(
-        payloadObject.boardId,
-        payloadObject.boardName,
-      );
-    }
     client.join(payloadObject.boardId);
-    client.emit(
-      'initTree',
-      this.boardTreesService.getTreeData(payloadObject.boardId),
-    );
-  }
-
-  @SubscribeMessage('updateMindmap')
-  handleUpdateMindmap(client: Socket, payload: string) {
-    const payloadObject = JSON.parse(payload);
-    const { boardId, operation: serializedOperation } = payloadObject;
-
-    const operationTypeMap = {
-      add: OperationAdd.parse,
-      delete: OperationDelete.parse,
-      move: OperationMove.parse,
-      update: OperationUpdate.parse,
-    };
-
-    const operation =
-      operationTypeMap[serializedOperation.operationType](serializedOperation);
-    this.boardTreesService.applyOperation(boardId, operation);
-    this.boardTreesService.updateTreeData(boardId);
-
-    client.broadcast
-      .to(boardId)
-      .emit('operationFromServer', serializedOperation);
+    client.emit('boardJoined');
   }
 
   @SubscribeMessage('createOperation')

From c45c5fc8067011ec2f94ea0204fc240fd07c718a Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Tue, 4 Feb 2025 19:03:26 +0900
Subject: [PATCH 07/32] =?UTF-8?q?test:=20board=20trees=20=ED=85=8C?=
 =?UTF-8?q?=EC=8A=A4=ED=8A=B8=20=EB=AA=A8=EB=93=88?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 nestjs-BE/server/test/board-trees.e2e-spec.ts

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
new file mode 100644
index 00000000..c6465df3
--- /dev/null
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -0,0 +1,33 @@
+import { INestApplication } from '@nestjs/common';
+import { ConfigModule, ConfigService } from '@nestjs/config';
+import { Test, TestingModule } from '@nestjs/testing';
+import { MongooseModule } from '@nestjs/mongoose';
+import { BoardTreesModule } from '../src/board-trees/board-trees.module';
+
+describe('BoardTreesGateway (e2e)', () => {
+  let app: INestApplication;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      imports: [
+        ConfigModule.forRoot({ isGlobal: true }),
+        MongooseModule.forRootAsync({
+          imports: [ConfigModule],
+          inject: [ConfigService],
+          useFactory: async (configService: ConfigService) => ({
+            uri: configService.get<string>('MONGODB_DATABASE_URI'),
+          }),
+        }),
+        BoardTreesModule,
+      ],
+    }).compile();
+
+    app = module.createNestApplication();
+
+    await app.init();
+  });
+
+  afterAll(async () => {
+    await app.close();
+  });
+});

From 1e041be1ba92af3f5d5003b2fe780f9bb8881a40 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Tue, 4 Feb 2025 21:55:42 +0900
Subject: [PATCH 08/32] =?UTF-8?q?chore:=20socket.io-client=20=ED=8C=A8?=
 =?UTF-8?q?=ED=82=A4=EC=A7=80=20=EC=84=A4=EC=B9=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/package-lock.json | 40 ++++++++++++++++++++++++++++++
 nestjs-BE/server/package.json      |  1 +
 2 files changed, 41 insertions(+)

diff --git a/nestjs-BE/server/package-lock.json b/nestjs-BE/server/package-lock.json
index eacf71a3..65779b59 100644
--- a/nestjs-BE/server/package-lock.json
+++ b/nestjs-BE/server/package-lock.json
@@ -51,6 +51,7 @@
         "jest": "^29.5.0",
         "prettier": "^3.0.0",
         "prisma": "^5.6.0",
+        "socket.io-client": "^4.8.1",
         "source-map-support": "^0.5.21",
         "supertest": "^6.3.3",
         "ts-jest": "^29.1.0",
@@ -5926,6 +5927,20 @@
         "node": ">=10.2.0"
       }
     },
+    "node_modules/engine.io-client": {
+      "version": "6.6.3",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-6.6.3.tgz",
+      "integrity": "sha512-T0iLjnyNWahNyv/lcjS2y4oE358tVS/SYQNxYXGAJ9/GLgH4VCvOQ/mhTjqU88mLZCQgiG8RIegFHYCdVC+j5w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@socket.io/component-emitter": "~3.1.0",
+        "debug": "~4.3.1",
+        "engine.io-parser": "~5.2.1",
+        "ws": "~8.17.1",
+        "xmlhttprequest-ssl": "~2.1.1"
+      }
+    },
     "node_modules/engine.io-parser": {
       "version": "5.2.1",
       "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-5.2.1.tgz",
@@ -9901,6 +9916,22 @@
         "ws": "~8.17.1"
       }
     },
+    "node_modules/socket.io-client": {
+      "version": "4.8.1",
+      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-4.8.1.tgz",
+      "integrity": "sha512-hJVXfu3E28NmzGk8o1sHhN3om52tRvwYeidbj7xKy2eIIse5IoKX3USlS6Tqt3BHAtflLIkCQBkzVrEEfWUyYQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@socket.io/component-emitter": "~3.1.0",
+        "debug": "~4.3.2",
+        "engine.io-client": "~6.6.1",
+        "socket.io-parser": "~4.2.4"
+      },
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
     "node_modules/socket.io-parser": {
       "version": "4.2.4",
       "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.2.4.tgz",
@@ -11009,6 +11040,15 @@
         }
       }
     },
+    "node_modules/xmlhttprequest-ssl": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-2.1.2.tgz",
+      "integrity": "sha512-TEU+nJVUUnA4CYJFLvK5X9AOeH4KvDvhIfm0vV1GaQRtchnG0hgK5p8hw/xjv8cunWYCsiPCSDzObPyhEwq3KQ==",
+      "dev": true,
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
     "node_modules/xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
diff --git a/nestjs-BE/server/package.json b/nestjs-BE/server/package.json
index 53e99d80..f35f96cb 100644
--- a/nestjs-BE/server/package.json
+++ b/nestjs-BE/server/package.json
@@ -62,6 +62,7 @@
     "jest": "^29.5.0",
     "prettier": "^3.0.0",
     "prisma": "^5.6.0",
+    "socket.io-client": "^4.8.1",
     "source-map-support": "^0.5.21",
     "supertest": "^6.3.3",
     "ts-jest": "^29.1.0",

From d143d989c3599984161665667013305df8361ba7 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Tue, 4 Feb 2025 22:45:44 +0900
Subject: [PATCH 09/32] =?UTF-8?q?test:=20socket.io-client=20=EB=8F=99?=
 =?UTF-8?q?=EC=9E=91=20=ED=99=95=EC=9D=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index c6465df3..ed7eaf2b 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -3,6 +3,9 @@ import { ConfigModule, ConfigService } from '@nestjs/config';
 import { Test, TestingModule } from '@nestjs/testing';
 import { MongooseModule } from '@nestjs/mongoose';
 import { BoardTreesModule } from '../src/board-trees/board-trees.module';
+import { io } from 'socket.io-client';
+
+const PORT = 3000;
 
 describe('BoardTreesGateway (e2e)', () => {
   let app: INestApplication;
@@ -25,9 +28,21 @@ describe('BoardTreesGateway (e2e)', () => {
     app = module.createNestApplication();
 
     await app.init();
+    await app.listen(PORT);
   });
 
   afterAll(async () => {
     await app.close();
   });
+
+  describe('socket connection', () => {
+    it('fail', (done) => {
+      const socket = io(`http://localhost:${PORT}`);
+      socket.on('connect', () => {
+        expect('this is connected').toBe('this is connected');
+        socket.disconnect();
+        done();
+      });
+    });
+  });
 });

From 531db28d4ef881db664cc371cc7123ebe22a4e7b Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Wed, 5 Feb 2025 22:56:21 +0900
Subject: [PATCH 10/32] =?UTF-8?q?test:=20=EB=84=A4=EC=9E=84=EC=8A=A4?=
 =?UTF-8?q?=ED=8E=98=EC=9D=B4=EC=8A=A4=EB=A1=9C=20=EC=97=B0=EA=B2=B0?=
 =?UTF-8?q?=ED=95=98=EB=8F=84=EB=A1=9D=20=ED=85=8C=EC=8A=A4=ED=8A=B8=20?=
 =?UTF-8?q?=EC=BD=94=EB=93=9C=20=EB=B3=80=EA=B2=BD=EA=B2=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index ed7eaf2b..32e4c731 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -37,10 +37,13 @@ describe('BoardTreesGateway (e2e)', () => {
 
   describe('socket connection', () => {
     it('fail', (done) => {
-      const socket = io(`http://localhost:${PORT}`);
+      const socket = io(`ws://localhost:${PORT}/board`);
+
       socket.on('connect', () => {
         expect('this is connected').toBe('this is connected');
-        socket.disconnect();
+      });
+
+      socket.on('disconnect', () => {
         done();
       });
     });

From a2a65d13738b846b6850b461ba1709c6cfb77900 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Wed, 5 Feb 2025 22:57:04 +0900
Subject: [PATCH 11/32] =?UTF-8?q?fix:=20=EC=97=90=EB=9F=AC=20throw=20?=
 =?UTF-8?q?=EC=A0=9C=EA=B1=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/src/board-trees/board-trees.gateway.ts | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
index 330b2e53..6e04bda7 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
@@ -1,4 +1,3 @@
-import { UnauthorizedException } from '@nestjs/common';
 import { JwtService } from '@nestjs/jwt';
 import {
   OnGatewayConnection,
@@ -23,13 +22,11 @@ export class BoardTreesGateway implements OnGatewayConnection {
   handleConnection(client: Socket, token: string) {
     if (!token) {
       client.disconnect();
-      throw new UnauthorizedException();
     }
     try {
       this.jwtService.verify(token);
     } catch (error) {
       client.disconnect();
-      throw new UnauthorizedException();
     }
   }
 

From 588a59ff00bc399de51637e187c939ca2559ff05 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Thu, 6 Feb 2025 15:15:29 +0900
Subject: [PATCH 12/32] =?UTF-8?q?test:=20=EC=97=B0=EA=B2=B0=20=EC=8B=A4?=
 =?UTF-8?q?=ED=8C=A8=20=EC=8B=9C=20connect=5Ferror=20=EC=9D=B4=EB=B2=A4?=
 =?UTF-8?q?=ED=8A=B8=EB=A1=9C=20=ED=85=8C=EC=8A=A4=ED=8A=B8=20=EB=B3=80?=
 =?UTF-8?q?=EA=B2=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

connect_error는 이유를 설정할 수 있으므로 connect_error가 일어나는 것으로 변경
---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index 32e4c731..7914beb7 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -36,14 +36,11 @@ describe('BoardTreesGateway (e2e)', () => {
   });
 
   describe('socket connection', () => {
-    it('fail', (done) => {
+    it('fail when access token is not included', (done) => {
       const socket = io(`ws://localhost:${PORT}/board`);
 
-      socket.on('connect', () => {
-        expect('this is connected').toBe('this is connected');
-      });
-
-      socket.on('disconnect', () => {
+      socket.on('connect_error', (error) => {
+        expect(error.message).toBe('access token required');
         done();
       });
     });

From 89c5ab0e0d963082e32ff827c07afb27c5943cbe Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Thu, 6 Feb 2025 15:15:48 +0900
Subject: [PATCH 13/32] =?UTF-8?q?refactor:=20import=20=EC=88=9C=EC=84=9C?=
 =?UTF-8?q?=20=EB=B3=80=EA=B2=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index 7914beb7..4db77a75 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -2,8 +2,8 @@ import { INestApplication } from '@nestjs/common';
 import { ConfigModule, ConfigService } from '@nestjs/config';
 import { Test, TestingModule } from '@nestjs/testing';
 import { MongooseModule } from '@nestjs/mongoose';
-import { BoardTreesModule } from '../src/board-trees/board-trees.module';
 import { io } from 'socket.io-client';
+import { BoardTreesModule } from '../src/board-trees/board-trees.module';
 
 const PORT = 3000;
 

From 229977ad3edccd829ab1c344da2f29d623ac2912 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Thu, 6 Feb 2025 15:22:05 +0900
Subject: [PATCH 14/32] =?UTF-8?q?refactor:=20=EC=84=9C=EB=B2=84=20url=20?=
 =?UTF-8?q?=EB=B3=80=EC=88=98=EB=A1=9C=20=EB=B3=80=EA=B2=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index 4db77a75..ad6ca6f4 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -36,8 +36,10 @@ describe('BoardTreesGateway (e2e)', () => {
   });
 
   describe('socket connection', () => {
+    const serverUrl = `ws://localhost:${PORT}/board`;
+
     it('fail when access token is not included', (done) => {
-      const socket = io(`ws://localhost:${PORT}/board`);
+      const socket = io(serverUrl);
 
       socket.on('connect_error', (error) => {
         expect(error.message).toBe('access token required');

From 33d9eba6f607af2ab30ab8423e442a1158c38fca Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Thu, 6 Feb 2025 15:58:17 +0900
Subject: [PATCH 15/32] =?UTF-8?q?test:=20=EC=9C=A0=ED=9A=A8=ED=95=98?=
 =?UTF-8?q?=EC=A7=80=20=EC=95=8A=EC=9D=80=20=ED=86=A0=ED=81=B0=20=EC=97=B0?=
 =?UTF-8?q?=EA=B2=B0=20=ED=85=8C=EC=8A=A4=ED=8A=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index ad6ca6f4..f8ce9897 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -2,13 +2,19 @@ import { INestApplication } from '@nestjs/common';
 import { ConfigModule, ConfigService } from '@nestjs/config';
 import { Test, TestingModule } from '@nestjs/testing';
 import { MongooseModule } from '@nestjs/mongoose';
+import { sign } from 'jsonwebtoken';
 import { io } from 'socket.io-client';
+import { v4 as uuid } from 'uuid';
 import { BoardTreesModule } from '../src/board-trees/board-trees.module';
+import { PrismaModule } from '../src/prisma/prisma.module';
+import { PrismaService } from '../src/prisma/prisma.service';
 
 const PORT = 3000;
 
 describe('BoardTreesGateway (e2e)', () => {
   let app: INestApplication;
+  let prisma: PrismaService;
+  let config: ConfigService;
 
   beforeAll(async () => {
     const module: TestingModule = await Test.createTestingModule({
@@ -22,6 +28,7 @@ describe('BoardTreesGateway (e2e)', () => {
           }),
         }),
         BoardTreesModule,
+        PrismaModule,
       ],
     }).compile();
 
@@ -29,6 +36,9 @@ describe('BoardTreesGateway (e2e)', () => {
 
     await app.init();
     await app.listen(PORT);
+
+    prisma = module.get<PrismaService>(PrismaService);
+    config = module.get<ConfigService>(ConfigService);
   });
 
   afterAll(async () => {
@@ -46,5 +56,23 @@ describe('BoardTreesGateway (e2e)', () => {
         done();
       });
     });
+
+    it('fail when access token is invalid', async () => {
+      const testUser = await prisma.user.create({ data: { uuid: uuid() } });
+      const testToken = sign(
+        { sub: testUser.uuid },
+        config.get<string>('JWT_ACCESS_SECRET'),
+        { expiresIn: '-5m' },
+      );
+
+      const error: Error = await new Promise((resolve) => {
+        const socket = io(serverUrl, { auth: { token: testToken } });
+        socket.on('connect_error', (error) => {
+          resolve(error);
+        });
+      });
+
+      expect(error.message).toBe('token is invalid');
+    });
   });
 });

From 96df96530f210e344356f6c1e3bdc61eb5e1753e Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Thu, 6 Feb 2025 16:00:05 +0900
Subject: [PATCH 16/32] =?UTF-8?q?fix:=20=EC=82=AC=EC=9A=A9=EC=9E=90=20?=
 =?UTF-8?q?=EC=9D=B8=EC=A6=9D=EC=9D=84=20afterInit=EC=97=90=EC=84=9C=20?=
 =?UTF-8?q?=EC=B2=98=EB=A6=AC=ED=95=98=EB=8F=84=EB=A1=9D=20=EC=88=98?=
 =?UTF-8?q?=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

socket.io 서버에 미들웨어를 등록해서 사용자 인증을 처리리
---
 .../src/board-trees/board-trees.gateway.ts    | 27 +++++++++++--------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
index 6e04bda7..17049ae5 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
@@ -1,16 +1,17 @@
 import { JwtService } from '@nestjs/jwt';
 import {
-  OnGatewayConnection,
+  OnGatewayInit,
   SubscribeMessage,
   WebSocketGateway,
   WebSocketServer,
+  WsException,
 } from '@nestjs/websockets';
 import { Server, Socket } from 'socket.io';
 import { BoardTreesService } from './board-trees.service';
 import type { BoardOperation } from './schemas/board-operation.schema';
 
 @WebSocketGateway({ namespace: 'board' })
-export class BoardTreesGateway implements OnGatewayConnection {
+export class BoardTreesGateway implements OnGatewayInit {
   constructor(
     private boardTreesService: BoardTreesService,
     private jwtService: JwtService,
@@ -19,15 +20,19 @@ export class BoardTreesGateway implements OnGatewayConnection {
   @WebSocketServer()
   server: Server;
 
-  handleConnection(client: Socket, token: string) {
-    if (!token) {
-      client.disconnect();
-    }
-    try {
-      this.jwtService.verify(token);
-    } catch (error) {
-      client.disconnect();
-    }
+  afterInit(server: Server) {
+    server.use((socket, next) => {
+      const token = socket.handshake.auth.token;
+      if (!token) {
+        next(new WsException('access token required'));
+      }
+      try {
+        this.jwtService.verify(token);
+        next();
+      } catch (error) {
+        next(new WsException('token is invalid'));
+      }
+    });
   }
 
   @SubscribeMessage('joinBoard')

From 70685599d07ad9161ec942ab3e39f03b1430218b Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Thu, 6 Feb 2025 16:19:52 +0900
Subject: [PATCH 17/32] =?UTF-8?q?test:=20=EC=97=B0=EA=B2=B0=20=EC=84=B1?=
 =?UTF-8?q?=EA=B3=B5=20=ED=85=8C=EC=8A=A4=ED=8A=B8=ED=8A=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index f8ce9897..26e5a0cd 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -74,5 +74,25 @@ describe('BoardTreesGateway (e2e)', () => {
 
       expect(error.message).toBe('token is invalid');
     });
+
+    it('success', async () => {
+      const testUser = await prisma.user.create({ data: { uuid: uuid() } });
+      const testToken = sign(
+        { sub: testUser.uuid },
+        config.get<string>('JWT_ACCESS_SECRET'),
+        { expiresIn: '5m' },
+      );
+
+      const connected = await new Promise((resolve) => {
+        const socket = io(serverUrl, { auth: { token: testToken } });
+        socket.on('connect', () => {
+          const connected = socket.connected;
+          socket.disconnect();
+          resolve(connected);
+        });
+      });
+
+      expect(connected).toBeTruthy();
+    });
   });
 });

From b9a55c735de54d03d17e82d2364d99be080ab56a Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Thu, 6 Feb 2025 16:20:30 +0900
Subject: [PATCH 18/32] =?UTF-8?q?fix:=20secret=20=EC=98=B5=EC=85=98=20?=
 =?UTF-8?q?=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/src/board-trees/board-trees.gateway.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
index 17049ae5..47f1ca0d 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
@@ -6,6 +6,7 @@ import {
   WebSocketServer,
   WsException,
 } from '@nestjs/websockets';
+import { ConfigService } from '@nestjs/config';
 import { Server, Socket } from 'socket.io';
 import { BoardTreesService } from './board-trees.service';
 import type { BoardOperation } from './schemas/board-operation.schema';
@@ -15,6 +16,7 @@ export class BoardTreesGateway implements OnGatewayInit {
   constructor(
     private boardTreesService: BoardTreesService,
     private jwtService: JwtService,
+    private configService: ConfigService,
   ) {}
 
   @WebSocketServer()
@@ -27,7 +29,9 @@ export class BoardTreesGateway implements OnGatewayInit {
         next(new WsException('access token required'));
       }
       try {
-        this.jwtService.verify(token);
+        this.jwtService.verify(token, {
+          secret: this.configService.get<string>('JWT_ACCESS_SECRET'),
+        });
         next();
       } catch (error) {
         next(new WsException('token is invalid'));

From 1f670f576bf5d35b808491b2a1e5329c7a19213c Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Fri, 7 Feb 2025 20:26:10 +0900
Subject: [PATCH 19/32] =?UTF-8?q?test:=20=ED=85=8C=EC=8A=A4=ED=8A=B8=20?=
 =?UTF-8?q?=EC=9D=B4=EB=A6=84=20=EB=B3=80=EA=B2=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index 26e5a0cd..05e8fa69 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -45,7 +45,7 @@ describe('BoardTreesGateway (e2e)', () => {
     await app.close();
   });
 
-  describe('socket connection', () => {
+  describe('socket connection authentication', () => {
     const serverUrl = `ws://localhost:${PORT}/board`;
 
     it('fail when access token is not included', (done) => {

From a4b4d29480f391fe44df9593ded9f47cf31a0faa Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Fri, 7 Feb 2025 20:27:56 +0900
Subject: [PATCH 20/32] =?UTF-8?q?test:=20=EC=97=B0=EA=B2=B0=20=EC=8B=9C=20?=
 =?UTF-8?q?boardId=20=ED=99=95=EC=9D=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index 05e8fa69..9e07dd0f 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -95,4 +95,31 @@ describe('BoardTreesGateway (e2e)', () => {
       expect(connected).toBeTruthy();
     });
   });
+
+  describe('join board on connection', () => {
+    const serverUrl = `ws://localhost:${PORT}/board`;
+    let testToken: string;
+
+    beforeEach(async () => {
+      const testUser = await prisma.user.create({ data: { uuid: uuid() } });
+      testToken = sign(
+        { sub: testUser.uuid },
+        config.get<string>('JWT_ACCESS_SECRET'),
+        { expiresIn: '5m' },
+      );
+    });
+
+    it('board_id_required error when board id not included', async () => {
+      const error: Error = await new Promise((resolve) => {
+        const socket = io(serverUrl, {
+          auth: { token: testToken },
+        });
+        socket.on('board_id_required', (error) => {
+          resolve(error);
+        });
+      });
+
+      expect(error.message).toBe('board id required');
+    });
+  });
 });

From f62c9c7e34d125ec3225030eb71b761c3f3ff537 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Fri, 7 Feb 2025 20:30:11 +0900
Subject: [PATCH 21/32] =?UTF-8?q?feat:=20socket.io=20=EC=97=B0=EA=B2=B0=20?=
 =?UTF-8?q?=EC=8B=9C=EC=97=90=20=EB=B3=B4=EB=93=9C=20room=EC=97=90=20join?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../src/board-trees/board-trees.gateway.ts     | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
index 47f1ca0d..d32e3afe 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
@@ -1,5 +1,6 @@
 import { JwtService } from '@nestjs/jwt';
 import {
+  OnGatewayConnection,
   OnGatewayInit,
   SubscribeMessage,
   WebSocketGateway,
@@ -12,7 +13,7 @@ import { BoardTreesService } from './board-trees.service';
 import type { BoardOperation } from './schemas/board-operation.schema';
 
 @WebSocketGateway({ namespace: 'board' })
-export class BoardTreesGateway implements OnGatewayInit {
+export class BoardTreesGateway implements OnGatewayInit, OnGatewayConnection {
   constructor(
     private boardTreesService: BoardTreesService,
     private jwtService: JwtService,
@@ -39,11 +40,16 @@ export class BoardTreesGateway implements OnGatewayInit {
     });
   }
 
-  @SubscribeMessage('joinBoard')
-  async handleJoinBoard(client: Socket, payload: string) {
-    const payloadObject = JSON.parse(payload);
-    client.join(payloadObject.boardId);
-    client.emit('boardJoined');
+  handleConnection(client: Socket) {
+    const query = client.handshake.query;
+    const boardId = query.boardId;
+
+    if (!boardId) {
+      client.emit('board_id_required', new WsException('board id required'));
+      client.disconnect();
+    }
+    client.join(boardId);
+    client.emit('board_joined', boardId);
   }
 
   @SubscribeMessage('createOperation')

From d2c116e16f0d86d058270753f8f2b881149f1da0 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Fri, 7 Feb 2025 20:35:00 +0900
Subject: [PATCH 22/32] =?UTF-8?q?fix:=20Error=EB=A5=BC=20resolve=EB=8C=80?=
 =?UTF-8?q?=EC=8B=A0=20reject=EB=A1=9C=20=EB=B0=9B=EA=B8=B0=EA=B8=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index 9e07dd0f..e7519311 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -65,14 +65,14 @@ describe('BoardTreesGateway (e2e)', () => {
         { expiresIn: '-5m' },
       );
 
-      const error: Error = await new Promise((resolve) => {
+      const error = new Promise((resolve, reject) => {
         const socket = io(serverUrl, { auth: { token: testToken } });
         socket.on('connect_error', (error) => {
-          resolve(error);
+          reject(error);
         });
       });
 
-      expect(error.message).toBe('token is invalid');
+      await expect(error).rejects.toHaveProperty('message', 'token is invalid');
     });
 
     it('success', async () => {
@@ -110,16 +110,19 @@ describe('BoardTreesGateway (e2e)', () => {
     });
 
     it('board_id_required error when board id not included', async () => {
-      const error: Error = await new Promise((resolve) => {
+      const error = new Promise((resolve, reject) => {
         const socket = io(serverUrl, {
           auth: { token: testToken },
         });
         socket.on('board_id_required', (error) => {
-          resolve(error);
+          reject(error);
         });
       });
 
-      expect(error.message).toBe('board id required');
+      await expect(error).rejects.toHaveProperty(
+        'message',
+        'board id required',
+      );
     });
   });
 });

From effa9ddd5f6fddc27c4b96892c3ee0dc3b391431 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Fri, 7 Feb 2025 20:48:06 +0900
Subject: [PATCH 23/32] =?UTF-8?q?test:=20=EB=B3=B4=EB=93=9C=20=EC=9E=85?=
 =?UTF-8?q?=EC=9E=A5=20=ED=85=8C=EC=8A=A4=ED=8A=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index e7519311..aa815f5f 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -124,5 +124,22 @@ describe('BoardTreesGateway (e2e)', () => {
         'board id required',
       );
     });
+
+    it('join board', async () => {
+      const boardId = 'board id';
+
+      const response = await new Promise((resolve) => {
+        const socket = io(serverUrl, {
+          auth: { token: testToken },
+          query: { boardId },
+        });
+        socket.on('board_joined', (boardId) => {
+          socket.disconnect();
+          resolve(boardId);
+        });
+      });
+
+      expect(response).toBe(boardId);
+    });
   });
 });

From fb6568cccaf533504af2629f06167b1646e79de4 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Sat, 8 Feb 2025 12:51:38 +0900
Subject: [PATCH 24/32] =?UTF-8?q?refactor:=20serverUrl=20=EC=83=81?=
 =?UTF-8?q?=EC=9C=84=20=EC=8A=A4=EC=BD=94=ED=94=84=EB=A1=9C=20=EC=9D=B4?=
 =?UTF-8?q?=EB=8F=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index aa815f5f..76a7ee3e 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -12,6 +12,7 @@ import { PrismaService } from '../src/prisma/prisma.service';
 const PORT = 3000;
 
 describe('BoardTreesGateway (e2e)', () => {
+  const serverUrl = `ws://localhost:${PORT}/board`;
   let app: INestApplication;
   let prisma: PrismaService;
   let config: ConfigService;
@@ -46,8 +47,6 @@ describe('BoardTreesGateway (e2e)', () => {
   });
 
   describe('socket connection authentication', () => {
-    const serverUrl = `ws://localhost:${PORT}/board`;
-
     it('fail when access token is not included', (done) => {
       const socket = io(serverUrl);
 
@@ -97,7 +96,6 @@ describe('BoardTreesGateway (e2e)', () => {
   });
 
   describe('join board on connection', () => {
-    const serverUrl = `ws://localhost:${PORT}/board`;
     let testToken: string;
 
     beforeEach(async () => {

From e4ee3f3bee5905f69214d50a1048232e6bbb4ee0 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Sat, 8 Feb 2025 15:06:22 +0900
Subject: [PATCH 25/32] =?UTF-8?q?test:=20=EC=9E=91=EC=97=85=20=EC=83=9D?=
 =?UTF-8?q?=EC=84=B1=20=ED=85=8C=EC=8A=A4=ED=8A=B8=ED=8A=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 58 ++++++++++++++++++-
 1 file changed, 57 insertions(+), 1 deletion(-)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index 76a7ee3e..a0aa15a0 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -3,9 +3,10 @@ import { ConfigModule, ConfigService } from '@nestjs/config';
 import { Test, TestingModule } from '@nestjs/testing';
 import { MongooseModule } from '@nestjs/mongoose';
 import { sign } from 'jsonwebtoken';
-import { io } from 'socket.io-client';
+import { io, Socket } from 'socket.io-client';
 import { v4 as uuid } from 'uuid';
 import { BoardTreesModule } from '../src/board-trees/board-trees.module';
+import { BoardTreesService } from '../src/board-trees/board-trees.service';
 import { PrismaModule } from '../src/prisma/prisma.module';
 import { PrismaService } from '../src/prisma/prisma.service';
 
@@ -16,6 +17,7 @@ describe('BoardTreesGateway (e2e)', () => {
   let app: INestApplication;
   let prisma: PrismaService;
   let config: ConfigService;
+  let boardTreesService: BoardTreesService;
 
   beforeAll(async () => {
     const module: TestingModule = await Test.createTestingModule({
@@ -40,6 +42,7 @@ describe('BoardTreesGateway (e2e)', () => {
 
     prisma = module.get<PrismaService>(PrismaService);
     config = module.get<ConfigService>(ConfigService);
+    boardTreesService = module.get<BoardTreesService>(BoardTreesService);
   });
 
   afterAll(async () => {
@@ -140,4 +143,57 @@ describe('BoardTreesGateway (e2e)', () => {
       expect(response).toBe(boardId);
     });
   });
+
+  describe('createOperation', () => {
+    const boardId = 'board id';
+    let testToken: string;
+    let client: Socket;
+
+    beforeEach(async () => {
+      const testUser = await prisma.user.create({ data: { uuid: uuid() } });
+      testToken = sign(
+        { sub: testUser.uuid },
+        config.get<string>('JWT_ACCESS_SECRET'),
+        { expiresIn: '5m' },
+      );
+
+      await new Promise((resolve) => {
+        client = io(serverUrl, {
+          auth: { token: testToken },
+          query: { boardId },
+        });
+        client.on('board_joined', () => {
+          resolve(null);
+        });
+      });
+    });
+
+    afterEach(() => {
+      if (client.connected) {
+        client.disconnect();
+      }
+    });
+
+    it('create operation', async () => {
+      const testOperation = {
+        boardId: uuid(),
+        type: 'add',
+        parentId: 'root',
+        content: 'new node',
+      };
+
+      await new Promise((resolve) => {
+        client.on('operationCreated', () => {
+          resolve(null);
+        });
+
+        client.emit('createOperation', testOperation);
+      });
+
+      const operations = await boardTreesService.getOperationLogs(
+        testOperation.boardId,
+      );
+      expect(operations).toContainEqual(testOperation);
+    });
+  });
 });

From edf825eebdca6cbd37ac22c4675676b5832c5652 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Sat, 8 Feb 2025 15:10:52 +0900
Subject: [PATCH 26/32] =?UTF-8?q?fix:=20=EC=9E=91=EC=97=85=20=EC=83=9D?=
 =?UTF-8?q?=EC=84=B1=20=EC=9D=B8=EC=9E=90=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/src/board-trees/board-trees.service.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nestjs-BE/server/src/board-trees/board-trees.service.ts b/nestjs-BE/server/src/board-trees/board-trees.service.ts
index e8179aa8..4b8cc887 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.service.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.service.ts
@@ -62,7 +62,7 @@ export class BoardTreesService {
   }
 
   async createOperationLog(operation: BoardOperation) {
-    return this.boardOperationModel.create({ operation });
+    return this.boardOperationModel.create(operation);
   }
 
   async getOperationLogs(boardId: string) {

From 5fde4efed5cf669ecbcb8530478ed1f4262ccc88 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Sat, 8 Feb 2025 15:11:50 +0900
Subject: [PATCH 27/32] =?UTF-8?q?fix:=20select,=20lean=20=EC=B6=94?=
 =?UTF-8?q?=EA=B0=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

select를 사용해서 가져올 필드를 설정한다. lean은 단순한 객체를 생성하여 데이터 수정이 없는 경우에 빠르게 생성한다.
---
 nestjs-BE/server/src/board-trees/board-trees.service.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/nestjs-BE/server/src/board-trees/board-trees.service.ts b/nestjs-BE/server/src/board-trees/board-trees.service.ts
index 4b8cc887..1fe2c693 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.service.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.service.ts
@@ -66,6 +66,9 @@ export class BoardTreesService {
   }
 
   async getOperationLogs(boardId: string) {
-    return this.boardOperationModel.find({ boardId });
+    return this.boardOperationModel
+      .find({ boardId })
+      .select('-_id -__v')
+      .lean();
   }
 }

From d1f59c1cacacc24ce9dbf99d161c1942eb6a88a2 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Sat, 8 Feb 2025 15:12:16 +0900
Subject: [PATCH 28/32] =?UTF-8?q?feat:=20=EC=9E=91=EC=97=85=20=EC=83=9D?=
 =?UTF-8?q?=EC=84=B1=EC=97=90=20=EB=8C=80=ED=95=9C=20=EC=9D=91=EB=8B=B5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/src/board-trees/board-trees.gateway.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
index d32e3afe..72eabc92 100644
--- a/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
+++ b/nestjs-BE/server/src/board-trees/board-trees.gateway.ts
@@ -56,6 +56,7 @@ export class BoardTreesGateway implements OnGatewayInit, OnGatewayConnection {
   async handleCreateOperation(client: Socket, operation: BoardOperation) {
     await this.boardTreesService.createOperationLog(operation);
     client.broadcast.to(operation.boardId).emit('operation', operation);
+    client.emit('operationCreated');
   }
 
   @SubscribeMessage('getOperations')

From 9d396c5b03d3219f5cf8a57198db54006a602d32 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Sat, 8 Feb 2025 15:25:59 +0900
Subject: [PATCH 29/32] =?UTF-8?q?test:=20=EB=8B=A4=EB=A5=B8=20=EC=9C=A0?=
 =?UTF-8?q?=EC=A0=80=EC=97=90=20=EC=9E=91=EC=97=85=20=EB=B3=B4=EB=82=B4?=
 =?UTF-8?q?=EA=B8=B0=20=ED=85=8C=EC=8A=A4=ED=8A=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index a0aa15a0..11216543 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -195,5 +195,44 @@ describe('BoardTreesGateway (e2e)', () => {
       );
       expect(operations).toContainEqual(testOperation);
     });
+
+    it('other client received operation', async () => {
+      let otherClient: Socket;
+
+      const otherUser = await prisma.user.create({ data: { uuid: uuid() } });
+      const otherToken = sign(
+        { sub: otherUser.uuid },
+        config.get<string>('JWT_ACCESS_SECRET'),
+        { expiresIn: '5m' },
+      );
+
+      await new Promise((resolve) => {
+        otherClient = io(serverUrl, {
+          auth: { token: otherToken },
+          query: { boardId },
+        });
+        otherClient.on('board_joined', () => {
+          resolve(null);
+        });
+      });
+
+      const testOperation = {
+        boardId,
+        type: 'add',
+        parentId: 'root',
+        content: 'new node',
+      };
+
+      const response = await new Promise((resolve) => {
+        otherClient.on('operation', (operation) => {
+          otherClient.disconnect();
+          resolve(operation);
+        });
+
+        client.emit('createOperation', testOperation);
+      });
+
+      expect(response).toEqual(testOperation);
+    });
   });
 });

From e5bfdc4327fa8a4301057953b4601226a2c2ced8 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Sun, 9 Feb 2025 15:37:26 +0900
Subject: [PATCH 30/32] =?UTF-8?q?test:=20=EC=9E=91=EC=97=85=20=EB=A1=9C?=
 =?UTF-8?q?=EA=B7=B8=20=EA=B0=80=EC=A0=B8=EC=98=A4=EA=B8=B0=20=ED=85=8C?=
 =?UTF-8?q?=EC=8A=A4=ED=8A=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 59 +++++++++++++++++++
 1 file changed, 59 insertions(+)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index 11216543..76b57177 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -9,6 +9,7 @@ import { BoardTreesModule } from '../src/board-trees/board-trees.module';
 import { BoardTreesService } from '../src/board-trees/board-trees.service';
 import { PrismaModule } from '../src/prisma/prisma.module';
 import { PrismaService } from '../src/prisma/prisma.service';
+import type { BoardOperation } from '../src/board-trees/schemas/board-operation.schema';
 
 const PORT = 3000;
 
@@ -235,4 +236,62 @@ describe('BoardTreesGateway (e2e)', () => {
       expect(response).toEqual(testOperation);
     });
   });
+
+  describe('getOperations', () => {
+    const boardId = uuid();
+    let testToken: string;
+    let testOperations: BoardOperation[];
+    let client: Socket;
+
+    beforeEach(async () => {
+      const testUser = await prisma.user.create({ data: { uuid: uuid() } });
+      testToken = sign(
+        { sub: testUser.uuid },
+        config.get<string>('JWT_ACCESS_SECRET'),
+        { expiresIn: '5m' },
+      );
+
+      await new Promise((resolve) => {
+        client = io(serverUrl, {
+          auth: { token: testToken },
+          query: { boardId },
+        });
+        client.on('board_joined', () => {
+          resolve(null);
+        });
+      });
+
+      testOperations = Array.from({ length: 5 }, () => {
+        return {
+          boardId,
+          type: 'add',
+          parentId: 'root',
+          content: 'new node',
+        } as BoardOperation;
+      });
+      await Promise.all(
+        testOperations.map((operation) =>
+          boardTreesService.createOperationLog(operation as BoardOperation),
+        ),
+      );
+    });
+
+    afterEach(() => {
+      if (client.connected) {
+        client.disconnect();
+      }
+    });
+
+    it('get operation logs', async () => {
+      const response = await new Promise((resolve) => {
+        client.on('getOperations', (operationLogs) => {
+          resolve(operationLogs);
+        });
+
+        client.emit('getOperations', boardId);
+      });
+
+      expect(response).toEqual(expect.arrayContaining(testOperations));
+    });
+  });
 });

From 9f16602e74ac8ee9b44c5b12c1b7b418e471f006 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Sun, 9 Feb 2025 16:24:10 +0900
Subject: [PATCH 31/32] =?UTF-8?q?refactor:=20=ED=81=B4=EB=9D=BC=EC=9D=B4?=
 =?UTF-8?q?=EC=96=B8=ED=8A=B8=20=EC=83=9D=EC=84=B1=20=ED=95=A8=EC=88=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 51 +++++++++----------
 1 file changed, 25 insertions(+), 26 deletions(-)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index 76b57177..cdd46b9e 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -9,6 +9,8 @@ import { BoardTreesModule } from '../src/board-trees/board-trees.module';
 import { BoardTreesService } from '../src/board-trees/board-trees.service';
 import { PrismaModule } from '../src/prisma/prisma.module';
 import { PrismaService } from '../src/prisma/prisma.service';
+
+import type { ManagerOptions, SocketOptions } from 'socket.io-client';
 import type { BoardOperation } from '../src/board-trees/schemas/board-operation.schema';
 
 const PORT = 3000;
@@ -158,14 +160,9 @@ describe('BoardTreesGateway (e2e)', () => {
         { expiresIn: '5m' },
       );
 
-      await new Promise((resolve) => {
-        client = io(serverUrl, {
-          auth: { token: testToken },
-          query: { boardId },
-        });
-        client.on('board_joined', () => {
-          resolve(null);
-        });
+      client = await createClientSocket(serverUrl, {
+        auth: { token: testToken },
+        query: { boardId },
       });
     });
 
@@ -198,8 +195,6 @@ describe('BoardTreesGateway (e2e)', () => {
     });
 
     it('other client received operation', async () => {
-      let otherClient: Socket;
-
       const otherUser = await prisma.user.create({ data: { uuid: uuid() } });
       const otherToken = sign(
         { sub: otherUser.uuid },
@@ -207,14 +202,9 @@ describe('BoardTreesGateway (e2e)', () => {
         { expiresIn: '5m' },
       );
 
-      await new Promise((resolve) => {
-        otherClient = io(serverUrl, {
-          auth: { token: otherToken },
-          query: { boardId },
-        });
-        otherClient.on('board_joined', () => {
-          resolve(null);
-        });
+      const otherClient = await createClientSocket(serverUrl, {
+        auth: { token: otherToken },
+        query: { boardId },
       });
 
       const testOperation = {
@@ -251,14 +241,9 @@ describe('BoardTreesGateway (e2e)', () => {
         { expiresIn: '5m' },
       );
 
-      await new Promise((resolve) => {
-        client = io(serverUrl, {
-          auth: { token: testToken },
-          query: { boardId },
-        });
-        client.on('board_joined', () => {
-          resolve(null);
-        });
+      client = await createClientSocket(serverUrl, {
+        auth: { token: testToken },
+        query: { boardId },
       });
 
       testOperations = Array.from({ length: 5 }, () => {
@@ -295,3 +280,17 @@ describe('BoardTreesGateway (e2e)', () => {
     });
   });
 });
+
+async function createClientSocket(
+  uri: string,
+  opts: Partial<ManagerOptions & SocketOptions>,
+) {
+  let client: Socket;
+  await new Promise((resolve) => {
+    client = io(uri, opts);
+    client.on('board_joined', () => {
+      resolve(null);
+    });
+  });
+  return client;
+}

From e32b012758c77214431bbaf38acc848965d73a38 Mon Sep 17 00:00:00 2001
From: Conut-1 <1mim1@naver.com>
Date: Sun, 9 Feb 2025 16:35:38 +0900
Subject: [PATCH 32/32] =?UTF-8?q?refactor:=20=ED=86=A0=ED=81=B0=20?=
 =?UTF-8?q?=EC=83=9D=EC=84=B1=20=ED=95=A8=EC=88=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nestjs-BE/server/test/board-trees.e2e-spec.ts | 48 ++++++-------------
 1 file changed, 15 insertions(+), 33 deletions(-)

diff --git a/nestjs-BE/server/test/board-trees.e2e-spec.ts b/nestjs-BE/server/test/board-trees.e2e-spec.ts
index cdd46b9e..8e7b89b9 100644
--- a/nestjs-BE/server/test/board-trees.e2e-spec.ts
+++ b/nestjs-BE/server/test/board-trees.e2e-spec.ts
@@ -81,12 +81,7 @@ describe('BoardTreesGateway (e2e)', () => {
     });
 
     it('success', async () => {
-      const testUser = await prisma.user.create({ data: { uuid: uuid() } });
-      const testToken = sign(
-        { sub: testUser.uuid },
-        config.get<string>('JWT_ACCESS_SECRET'),
-        { expiresIn: '5m' },
-      );
+      const testToken = await createUserToken(prisma, config);
 
       const connected = await new Promise((resolve) => {
         const socket = io(serverUrl, { auth: { token: testToken } });
@@ -105,12 +100,7 @@ describe('BoardTreesGateway (e2e)', () => {
     let testToken: string;
 
     beforeEach(async () => {
-      const testUser = await prisma.user.create({ data: { uuid: uuid() } });
-      testToken = sign(
-        { sub: testUser.uuid },
-        config.get<string>('JWT_ACCESS_SECRET'),
-        { expiresIn: '5m' },
-      );
+      testToken = await createUserToken(prisma, config);
     });
 
     it('board_id_required error when board id not included', async () => {
@@ -153,13 +143,7 @@ describe('BoardTreesGateway (e2e)', () => {
     let client: Socket;
 
     beforeEach(async () => {
-      const testUser = await prisma.user.create({ data: { uuid: uuid() } });
-      testToken = sign(
-        { sub: testUser.uuid },
-        config.get<string>('JWT_ACCESS_SECRET'),
-        { expiresIn: '5m' },
-      );
-
+      testToken = await createUserToken(prisma, config);
       client = await createClientSocket(serverUrl, {
         auth: { token: testToken },
         query: { boardId },
@@ -195,13 +179,7 @@ describe('BoardTreesGateway (e2e)', () => {
     });
 
     it('other client received operation', async () => {
-      const otherUser = await prisma.user.create({ data: { uuid: uuid() } });
-      const otherToken = sign(
-        { sub: otherUser.uuid },
-        config.get<string>('JWT_ACCESS_SECRET'),
-        { expiresIn: '5m' },
-      );
-
+      const otherToken = await createUserToken(prisma, config);
       const otherClient = await createClientSocket(serverUrl, {
         auth: { token: otherToken },
         query: { boardId },
@@ -234,13 +212,7 @@ describe('BoardTreesGateway (e2e)', () => {
     let client: Socket;
 
     beforeEach(async () => {
-      const testUser = await prisma.user.create({ data: { uuid: uuid() } });
-      testToken = sign(
-        { sub: testUser.uuid },
-        config.get<string>('JWT_ACCESS_SECRET'),
-        { expiresIn: '5m' },
-      );
-
+      testToken = await createUserToken(prisma, config);
       client = await createClientSocket(serverUrl, {
         auth: { token: testToken },
         query: { boardId },
@@ -281,6 +253,16 @@ describe('BoardTreesGateway (e2e)', () => {
   });
 });
 
+async function createUserToken(prisma: PrismaService, config: ConfigService) {
+  const user = await prisma.user.create({ data: { uuid: uuid() } });
+  const token = sign(
+    { sub: user.uuid },
+    config.get<string>('JWT_ACCESS_SECRET'),
+    { expiresIn: '5m' },
+  );
+  return token;
+}
+
 async function createClientSocket(
   uri: string,
   opts: Partial<ManagerOptions & SocketOptions>,